Kotlin Developer – Mobile Fintech Apps Location: Fareham, Hampshire Salary: £40,000 to £60,000 (dependent on experience) ​ Build the future of mobile Fintech apps ​ Stratospherec is working with an innovative Fintech business looking for an experienced Kotlin Developer to join its growing mobile development team. ​ This is an exciting opportunity for a developer who enjoys building high-quality mobile applications and wants to work on products used by real customers in a fast-moving Fintech environment. ​ You’ll play a key role in developing Android applications using Kotlin, while also using AI tools and technologies to improve your development workflow, productivity and software delivery. The role You will: * Develop and maintain Android applications using Kotlin * Build secure, scalable and high-quality mobile payment features * Use AI tools and technologies within your software development workflow * Work with Product, UX/UI and Backend teams to deliver new features * Contribute to technical design and architectural decisions * Write clean, maintainable and well-tested code * Investigate and resolve technical issues * Identify opportunities to use AI to improve development processes and product capabilities * Contribute to the ongoing improvement of the mobile development environment What we're looking for You’ll need: * Commercial experience developing Android applications using Kotlin * Proven experience building and delivering mobile applications * Practical experience using AI within your software development role * Good understanding of Android development principles and mobile architecture * Experience working with APIs and backend services * Strong understanding of software development, testing and version control * Experience working within an Agile development environment * A strong focus on quality, security and user experience Experience with native iOS development using Swift would be highly desirable, but is not essential. Experience within payments, fintech or another highly regulated environment would also be advantageous but not essential. Why join? You’ll be joining a technology-focused fintech business where you'll have the opportunity to work on high-impact mobile products, influence technical decisions and use modern mobile, AI and payment technologies. If you're an experienced Kotlin developer with strong Android experience who is already using AI as part of your development work, we'd love to hear from you. Apply now or contact Stratospherec for more information